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Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head
Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head
Specifications
Brand Name :
Summery
Model Number :
ISO7049
Certification :
DIN7981
Place of Origin :
China,shanghai
MOQ :
Negotiable
Price :
Negotiation
Payment Terms :
L/C, D/A, D/P, Western Union
Supply Ability :
10000000
Delivery Time :
7-10 Days
Packaging Details :
Poly bags
Product Name :
Self tapping screw
Material :
steel
Cross recess :
Type H
Surface :
Zinc plate
Project :
ISO7049/DIN7981
Size :
ST 4.2x21
Description

ISO7049 DIN7981 pan head Self tapping screws

This International Standard specifies the characteristics of Cross recessed pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.

Surface hardness:The minimum surface hardness after heat treatment shall be 450 HV 0,3

Core hardness:The core hardness af?er heat treatment shall be
270 HV 5 to 390 HV 5 for threads S ST3,9, and
270 HV 10 to 390 HV 10 for threads > ST4,2.

Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head

Self tapping screws Dimensions
Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head

Product tags

self tapping plasterboard screws

,

self drilling countersunk screws

,

#6 self tapping screw
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Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head

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Product Detail
Brand Name :
Summery
Model Number :
ISO7049
Certification :
DIN7981
Place of Origin :
China,shanghai
MOQ :
Negotiable
Price :
Negotiation
Contact Supplier
Rust Proof Self Tapping Countersunk Screws Cutting Off The End Cross Recessed Pan Head

Shanghai Summery Industrial Machine Co. , Ltd.

Active Member
10 Years
shanghai, shanghai
Business Type :
Manufacturer
Main Products :
Flange Head Screws, Cross Head Screw, Self Tapping Screws
Employee Number :
60~80
Certification Level :
Active Member
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